CE mark is European Union, general legal safety sign. Since 1974, the implementation of the 22 new methods of instruction almost daily industrial products are incorporated in the CE mark, as long as the conformity assessment procedures, can the products directly to play CE mark. However, according to the EU " on the coordination of each member for certain voltage ( low voltage ) within the scope of the electrical equipment legal 73/23/EEC (2006/95/EC ) instruction " provisions, of which 2 categories of very common products: household plugs, household socket is not on CE logo scope.